package/linux-tools/linux-tool-perf.mk

   1 ################################################################################
   2 #
   3 # perf
   4 #
   5 ################################################################################
   6
   7 LINUX_TOOLS += perf
   8
   9 PERF_DEPENDENCIES = host-flex host-bison
  10
  11 ifeq ($(KERNEL_ARCH),x86_64)
  12 PERF_ARCH=x86
  13 else
  14 PERF_ARCH=$(KERNEL_ARCH)
  15 endif
  16
  17 PERF_MAKE_FLAGS = \
  18         $(LINUX_MAKE_FLAGS) \
  19         JOBS=$(PARALLEL_JOBS) \
  20         ARCH=$(PERF_ARCH) \
  21         DESTDIR=$(TARGET_DIR) \
  22         prefix=/usr \
  23         WERROR=0 \
  24         NO_LIBAUDIT=1 \
  25         NO_NEWT=1 \
  26         NO_GTK2=1 \
  27         NO_LIBPERL=1 \
  28         NO_LIBPYTHON=1 \
  29         NO_LIBBIONIC=1
  30
  31 # We need to pass an argument to ld for setting the endianness when
  32 # building it for MIPS architecture, otherwise the default one will
  33 # always be used (which is big endian) and the compilation for little
  34 # endian will always fail showing an error like this one:
  35 #  LD    foo.o
  36 # mips-linux-gnu-ld: foo.o: compiled for a little endian system and
  37 # target is big endian
  38 ifeq ($(BR2_mips)$(BR2_mips64),y)
  39 PERF_MAKE_FLAGS += LD="$(TARGET_LD) -EB"
  40 else ifeq ($(BR2_mipsel)$(BR2_mips64el),y)
  41 PERF_MAKE_FLAGS += LD="$(TARGET_LD) -EL"
  42 endif
  43
  44 # The call to backtrace() function fails for ARC, because for some
  45 # reason the unwinder from libgcc returns early. Thus the usage of
  46 # backtrace() should be disabled in perf explicitly: at build time
  47 # backtrace() appears to be available, but it fails at runtime: the
  48 # backtrace will contain only several functions from the top of stack,
  49 # instead of the complete backtrace.
  50 ifeq ($(BR2_arc),y)
  51 PERF_MAKE_FLAGS += NO_BACKTRACE=1
  52 endif
  53
  54 ifeq ($(BR2_PACKAGE_SLANG),y)
  55 PERF_DEPENDENCIES += slang
  56 else
  57 PERF_MAKE_FLAGS += NO_SLANG=1
  58 endif
  59
  60 ifeq ($(BR2_PACKAGE_LIBUNWIND),y)
  61 PERF_DEPENDENCIES += libunwind
  62 else
  63 PERF_MAKE_FLAGS += NO_LIBUNWIND=1
  64 endif
  65
  66 ifeq ($(BR2_PACKAGE_NUMACTL),y)
  67 PERF_DEPENDENCIES += numactl
  68 else
  69 PERF_MAKE_FLAGS += NO_LIBNUMA=1
  70 endif
  71
  72 ifeq ($(BR2_PACKAGE_ELFUTILS),y)
  73 PERF_DEPENDENCIES += elfutils
  74 else
  75 PERF_MAKE_FLAGS += NO_LIBELF=1 NO_DWARF=1
  76 endif
  77
  78 ifeq ($(BR2_PACKAGE_ZLIB),y)
  79 PERF_DEPENDENCIES += zlib
  80 else
  81 PERF_MAKE_FLAGS += NO_ZLIB=1
  82 endif
  83
  84 # lzma is provided by xz
  85 ifeq ($(BR2_PACKAGE_XZ),y)
  86 PERF_DEPENDENCIES += xz
  87 else
  88 PERF_MAKE_FLAGS += NO_LZMA=1
  89 endif
  90
  91 # We really do not want to build the perf documentation, because it
  92 # has stringent requirement on the documentation generation tools,
  93 # like xmlto and asciidoc), which may be lagging behind on some
  94 # distributions.
  95 # We name it 'GNUmakefile' so that GNU make will use it instead of
  96 # the existing 'Makefile'.
  97 define PERF_DISABLE_DOCUMENTATION
  98         if [ -f $(LINUX_DIR)/tools/perf/Documentation/Makefile ]; then \
  99                 printf "%%:\n\t@:\n" >$(LINUX_DIR)/tools/perf/Documentation/GNUmakefile; \
 100         fi
 101 endef
 102 LINUX_POST_PATCH_HOOKS += PERF_DISABLE_DOCUMENTATION
 103
 104 # O must be redefined here to overwrite the one used by Buildroot for
 105 # out of tree build. We build perf in $(LINUX_DIR)/tools/perf/ and not just
 106 # $(LINUX_DIR) so that it isn't built in the root directory of the kernel
 107 # sources.
 108 define PERF_BUILD_CMDS
 109         $(Q)if test ! -f $(LINUX_DIR)/tools/perf/Makefile ; then \
 110                 echo "Your kernel version is too old and does not have the perf tool." ; \
 111                 echo "At least kernel 2.6.31 must be used." ; \
 112                 exit 1 ; \
 113         fi
 114         $(Q)if test "$(BR2_PACKAGE_ELFUTILS)" = "" ; then \
 115                 if ! grep -q NO_LIBELF $(LINUX_DIR)/tools/perf/Makefile* ; then \
 116                         if ! test -r $(LINUX_DIR)/tools/perf/config/Makefile ; then \
 117                                 echo "The perf tool in your kernel cannot be built without libelf." ; \
 118                                 echo "Either upgrade your kernel to >= 3.7, or enable the elfutils package." ; \
 119                                 exit 1 ; \
 120                         fi \
 121                 fi \
 122         fi
 123         $(TARGET_MAKE_ENV) $(MAKE1) $(PERF_MAKE_FLAGS) \
 124                 -C $(LINUX_DIR)/tools/perf O=$(LINUX_DIR)/tools/perf/
 125 endef
 126
 127 # After installation, we remove the Perl and Python scripts from the
 128 # target.
 129 define PERF_INSTALL_TARGET_CMDS
 130         $(TARGET_MAKE_ENV) $(MAKE1) $(PERF_MAKE_FLAGS) \
 131                 -C $(LINUX_DIR)/tools/perf O=$(LINUX_DIR)/tools/perf/ install
 132         $(RM) -rf $(TARGET_DIR)/usr/libexec/perf-core/scripts/
 133         $(RM) -rf $(TARGET_DIR)/usr/libexec/perf-core/tests/
 134 endef